For starters, we have a new URL! Careful searchers know that a URL can contain a lot of important information. So what does our switch from 21cif.imsa.edu to 21cif.com mean?

1. 21cif is no longer published by the Illinois Mathematics and Science Academy where it was conceived and developed. The authors and directors of the project are now the publishers, operating 21cif as an independent company.

2. The old rule of thumb that says ".com is bad" has been irrelevant for a number of years. The change from .edu to .com, in our case, does not mean the quality of the material has changed at all. All the resources remain free. The only fees that support the site come through tuition or licenses charged for facilitated courses and similar products.

3. You should update your link to us. Our site can still be accessed using 21cif.imsa.edu, but it will be a re-direct and not our actual address.

More information about this change is provided in our Keyword Blog.